Professionalism and care was shown by Brock throughout. Work was done on time and staff took the time to educate us on how to operate the installed sliding door, We had previously had Brock change all our windows and front door a year earlier and was so pleased with them that we had them install the patio door. We cannot think of any areas where Brock fell short of our expectations. We were most satisfied with the quality of material and workmanship the the care taken to explain to us how to use and care for our doors and windows. Several of my neighbours asked us for the name of the installer. Phil Munik our sales representitive and especially Sokol Bace, the installer were very helpful to us, They took the time and care to explain everything. Brock is a Good Company with good staff and provides quality products. We were fortunate to come across them and have no regrets.